Evaluation system for transient stability of large-scale power system based on optimal mutual information redundancy
A technology for transient stability evaluation and large-scale power, which is applied in circuit devices, AC network circuits, and reducing/preventing power oscillations. Ease of storage and calculation, good adaptability, and improved accuracy
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[0088] This embodiment takes the 1648 bus system as the research object, and observes its evaluation of the transient power angle stability of large-scale power systems.
[0089] The overall framework in the embodiment is as figure 1 As shown, the system mainly consists of four parts: basic data storage platform, transient stability feature extraction module, topology online update module and evaluation compensation module. Basic data storage platform, the purpose of which is to establish a statistical model that approximates the probability distribution of all random variables based on the large-scale historical data set of the on-site PMU; the transient stability feature extraction module constructs the correlation and redundancy with the transient stability margin In the topological transformation module, the topological relationship between different variables and the corresponding TSM is constructed by curve fitting; in the compensation evaluation module, the new variable...
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